Vacuum jug



FIG. 1 is a top, rear, and side perspective view of a vacuum jug showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view of the opposite side shown in FIG. 1;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view, and

FIG. 6 is a bottom plan view. 

The ornamental design for a vacuum jug, as shown. 